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Finding the Fourth Proportional to 179,542.80, 269,087.40 and 90,820.80

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Solution

The fourth proportional to 179,542.80, 269,087.40 and 90,820.80 is: 136,116.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,542.80 : 269,087.40 = 90,820.80 : x
  2. Step 2: Convert to fraction form
    179,542.80/269,087.40 = 90,820.80/x
  3. Step 3: Cross multiply
    179,542.80x = 269,087.40 × 90,820.80
  4. Step 4: Simplify right side
    179,542.80x = 24,438,732,937.92
  5. Step 5: Solve for x
    x = 24,438,732,937.92/179,542.80
  6. Step 6: Final answer
    x = 136,116.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.